CN202866844U - Resistance increasing deformed anchor rod or anchor cable anchoring quality monitoring device - Google Patents
Resistance increasing deformed anchor rod or anchor cable anchoring quality monitoring device Download PDFInfo
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- CN202866844U CN202866844U CN 201220458623 CN201220458623U CN202866844U CN 202866844 U CN202866844 U CN 202866844U CN 201220458623 CN201220458623 CN 201220458623 CN 201220458623 U CN201220458623 U CN 201220458623U CN 202866844 U CN202866844 U CN 202866844U
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Abstract
Disclosed is a resistance increasing deformed anchor rod or anchor cable anchoring quality monitoring device. The resistance increasing deformed anchor rod or anchor cable anchoring quality monitoring device comprises resistance increasing deformed anchor rods or anchor cables, displacement measuring units, data collecting equipment, an information transmission device and a central processing system. Displacement, generated in the process of working, of a rod body (cable body) is measured through the displacement measuring units arranged on each anchor rod or anchor cable. Data are summarized and transmitted to the central processing system through the data collecting equipment and the information transmission device. Transmitted displacement data can be converted into drawing force of the anchor rod or anchor cable and surrounding rock displacement data through the central processing system. Anchoring force of the anchor rod or anchor cable and surrounding rock displacement can be monitored and provided simultaneously by the resistance increasing deformed anchor rod or anchor cable anchoring quality monitoring device, the anchor rod or anchor cable which is out of work can be found timely, surrounding rock collapse and damage can be forecasted, occurrence of safety accidents can be effectively prevented, and monitoring cost is greatly reduced.
Description
Technical field
The utility model relates to geotechnical engineering anchoring field, relates in particular to anchor cable and Detection of Bolt Bonding Integrity monitoring device.
Background technology
Along with the deep development that extensive geotechnical engineering is built, the geological conditions that faces becomes increasingly complex, and country rock often shows the characteristics of large deformation.When rock deformation is larger, when surpassing the scope that anchor pole/anchor cable can bear, will causes anchor pole/anchor cable damage inactivation, and then cause underground construction unstable failure accident.
For this situation, the applicant develops and increases accordingly resistive shape anchor pole/anchor cable (201110368935.1,201110368805.8) to adapt to these situations.Above-mentioned patented product is found following problem in application process: for the stability of grasping country rock and the reliability of anchoring system, the anchoring quality (comprising anchored force and surrounding rock displacement) that needs long term monitoring anchor pole/anchor cable, there is not at present corresponding equipment can monitor simultaneously above-mentioned two variablees, and the cost of specialized detection is higher, and has various drawbacks.
At present, generally detect anchor-holding force of anchor bolt by pull-out test method or stress wave bounce technique in China.The pull-out test method rests on jack more and carries out the mechanical damage pull-out test stage both at home and abroad, testing process can produce infringement to anchor pole, and stressing conditions and anchor pole natural stress in rock mass of anchor pole has very big difference in the drawing experiment, and the method can not reflect real stress in the anchor pole course of work.When detecting Detection of Bolt Bonding Integrity with the stress wave bounce technique, the decay of stress wave energy in this system is very fast, be difficult to see the reflected signal of bottom, and easily be subject to the impact of factors, such as distribution of anchor pole revealed section length, mortar strength, rock joint etc., this is just so that the signal that records contains many interference components, estimates accurately thereby be difficult to according to the signal of actual measurement the anchoring quality of anchor pole to be provided one.In addition, above two kinds of methods all can not reflect the displacement that anchor pole/anchor cable occurs with country rock, and for detection of the multiple position extensometer of surrounding rock displacement, each measuring point cost reaches several thousand yuan, is not suitable for carrying out the measurement of surrounding rock displacement on a large scale.
For the higher major works of security level required, need long-term monitoring anchor pole/anchorage cable anchoring quality, with timely discovery inefficacy anchor pole/anchor cable, prevent the danger that may occur, and take to change or corresponding maintenance measure.These surveying works can expend a large amount of manpower and materials and carry out in-site measurement and data processing, and because person-to-person measurement difference may cause measure error.In addition, this measurement can not carry out for contingent emergency at any time that active is measured and forecast.
The utility model content
For above-mentioned situation, the utility model proposes a kind of resistive shape anchor pole/anchorage cable anchoring quality monitoring device that increases, this monitoring device is coupling in the support apparatus, can realize timely monitor to anchor pole/anchorage cable anchoring power and surrounding rock displacement by lower cost.
Its technical solution is:
A kind of resistive shape anchor pole/anchorage cable anchoring quality monitoring device that increases is characterized in that comprising: increase resistive shape anchor pole/anchor cable, displacement measurement unit, data acquisition equipment, information carrying means and central processing system.
The described resistive shape anchor pole/anchor cable that increases comprises: friction sleeve pipe, contractibility member, the body of rod (steel strand), pallet, nut and outer end cap.Described friction sleeve pipe is the tubular thick walled steel tube, and internal diameter passes through and diminishes gradually; Described contractibility member, be the steel pipe with axial breach, be nested in the friction sleeve pipe, the external diameter of contractibility member diminishes gradually from the end to end of member, the outer wall of contractibility member keeps in touch with the inwall of friction sleeve pipe, with friction sleeve pipe generation relative sliding, breach is compressed simultaneously when being subjected to pulling force, and resistance increases thereupon.The friction sleeve pipe extends to the anchor hole outside, is the open type structure, is threaded connection with outer end cap.Can tension when country rock generation large deformation elongation and failure not itself, and can increase continuously working resistance, in this process, can also constantly absorb the surrouding rock deformation energy.Outside end caps reservation wire guide during application is so that displacement measurement unit lead-in wire is derived.
Described displacement measurement unit is installed in advance and increases resistive shape anchor pole/anchor cable inside pipe casing, is fixed on the internal surface of sleeve pipe, and is connected with the body of rod, in order to measure the body of rod and sleeve pipe relative displacement.A kind of optimal way of displacement measurement unit is for adopting position sensor (LVDT).For different measurement categorys, the displacement measurement unit can have a plurality of, consists of one and measures the group, to detect anchor pole/anchor cable group's anchoring quality.
Described data acquisition equipment comprises data acquisition interface, signal conversion unit, data storage cell and data output unit, links to each other with at least one displacement measurement unit, collects the body of rod displacement data that the displacement measurement unit records, and driven rod displacement body data.For different measurement categorys, data acquisition equipment can have one or more.
Described information carrying means is used for the transfer of data between data acquisition unit and the central processing system, and this device is except adopting the data call wire, and another kind of preferred version is for to carry out transfer of data by wireless mode.
Described central processing system, comprise data receiver unit, data storage cell, data processing unit, data output unit, screen display unit and alarm Tip element, data processing unit carries out aggregation process with the body of rod displacement data that data acquisition equipment transmits, the body of rod displacement data that terminal is recorded according to pulling force-displacement curve is converted into pulling capacity and the surrounding rock displacement data of anchor pole/anchor cable, and output to display, output alarm signal appears when unusual in the pulling capacity of anchor pole/anchor cable and surrounding rock displacement data.Described pulling force-displacement curve obtains by pull-out test.
As a kind of optimal way, the group's quality and the surrounding rock displacement monitoring device that increase resistive shape anchor pole/anchor cable also comprise field processing equipment, possess configuration and the function of described central processing system, and it is arranged on engineering site, observe monitoring result, in order to pinpoint the problems and in time process in good time.
The operating principle of this device is as follows:
By being installed in the displacement measurement unit on each anchor pole/anchor cable, record the body of rod relatively displacement of occuring of friction sleeve pipe in the work engineering (namely between the two machinery slide), by data acquisition equipment displacement data is gathered storage, then by information carrying means data are sent to central processing system.Central processing system is according to the character of anchor pole/anchor cable, the displacement data that transmission comes can be converted into pulling capacity and the surrounding rock displacement data of anchor pole/anchor cable, but and according to the anchoring quality of pulling capacity and surrounding rock displacement situation analysis-by-synthesis anchor pole/anchor cable.Send warning when monitored data abnormal (, change in displacement excessive velocities excessive such as the rapid reduction of pulling capacity or rising, displacement of wall rock) time in good time.
The method that the body of rod and sleeve pipe relative displacement data is converted into the pulling capacity of anchor pole/anchor cable and surrounding rock displacement data is as follows: increase resistive shape anchor pole/anchor cable for any specific model, have one to one relation between the pulling force that the body of rod and sleeve pipe relative displacement and anchor pole/anchor cable are subject to, demarcate by pull-out test and can obtain the two corresponding pulling force-displacement curve.This can try to achieve its anchored force by increasing resistive shape anchor pole/anchor cable displacement by this curve, and wherein body of rod displacement data can be similar to as the surrounding rock displacement data, assesses thus anchoring quality.
The beneficial effect of this device is as follows:
The utility model is monitored two class devices with the pulling capacity of anchor pole/anchor cable and surrounding rock displacement and is coupled in the support apparatus, can realize simultaneously timely monitor to surrounding rock displacement and anchor pole/anchorage cable anchoring power by lower cost.According to survey data monitoring analysis anchoring quality, in time find inefficacy anchor pole/anchor cable, in case of emergency remind manager's anchoring system and state of surrounding rock, in time to take treatment measures, effectively prevent the generation of security incident, be suitable for the fields such as Hydraulic and Hydro-Power Engineering, slope project, mine engineering to the demand of country rock and anchor device monitoring, can greatly reduce monitoring cost.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and the specific embodiment:
Fig. 1 is the utility model know-why schematic diagram;
Fig. 2 is the resistive shape anchor cable cross-sectional view that increases described in the utility model;
Fig. 3 is the main TV structure principle schematic of contractibility member in Fig. 2 mode;
Fig. 4 is the left TV structure principle schematic of Fig. 3 mode;
Fig. 5 is the A-A schematic cross-section of Fig. 2;
Fig. 6 is a certain style number axis force of anchor-displacement curve of demarcating by laboratory test;
Fig. 7 is the data acquisition unit allocation plan;
Fig. 8 is the central processing system allocation plan.
The specific embodiment
As shown in Figure 1, for according to a preferred embodiment of the present utility model.According to the utility model, a kind of resistive shape anchor pole/anchorage cable anchoring quality monitoring device that increases comprises: increase resistive shape anchor pole/anchor cable 1, be used for the supporting country rock; Displacement measurement unit 2 is used for measuring stick displacement body data; Data acquisition equipment 3 is used for gathering and the storage data; Information carrying means 4 is used for exchanges data between device; Central processing system 5 is used for data analysis and Output rusults.
In conjunction with Fig. 2 to Fig. 5, the described resistive shape anchor pole/anchor cable that increases comprises friction sleeve pipe 101, contractibility member 102, steel strand (body of rod) 103, pallet 104, nut 105 and outer end cap 106.Described friction sleeve pipe is the tubular thick walled steel tube, and internal diameter passes through and diminishes gradually; Described contractibility member, be the steel pipe with axial breach 107, be nested in the friction sleeve pipe, the external diameter of contractibility member diminishes gradually from the end to end of member, its outer wall keeps in touch with the inwall of friction sleeve pipe, when being subjected to pulling force with friction sleeve pipe generation relative sliding, the simultaneously passive contraction of breach, resistance increases thereupon.End caps is reserved wire guide 108 outside, so that displacement measurement unit lead-in wire is derived.
Shown in Fig. 1,2, during the field, before installation increases resistive shape anchor pole/anchor cable 1, displacement measurement unit 2 is installed in advance increases resistive shape anchor pole/anchor cable friction sleeve pipe 101 inside, be fixed on the friction sleeve inside pipe wall, and be connected with the body of rod 103, in order to measure the body of rod and sleeve pipe relative displacement.A kind of optimal way of displacement measurement unit is for adopting position sensor (LVDT), and its range can reach 500mm, the maximum linear error be Full-span output ± 0.25%, satisfy the requirement of this device.For different works limits and measurement requirement, a plurality of displacement measurements unit can be arranged, consist of one and measure the group, to detect whole anchor pole/anchor cable group's anchoring quality.Described increase resistive shape anchor pole/anchor cable be a kind of can be with the anchor pole/anchor cable of surrouding rock deformation elongation, locate to reserve wire guide 108 at outer end cap etc., so that the installation of this device.
In conjunction with shown in Figure 7, data acquisition equipment 3, comprise data acquisition interface 301, signal conversion unit 302, data storage cell 303 and data output unit 304, data acquisition equipment links to each other with at least one displacement measurement unit 2, the body of rod displacement data that collection and bank bit shift measurement unit record is in order to being transferred to central processing system analysis.For different measurement categorys, data acquisition equipment 3 can have one or more.
Central processing system 5, comprise data receiver unit 501, data storage cell 502, data processing unit 503, data output unit 504, screen display unit 505 and alarm Tip element 506, data processing unit carries out aggregation process with the body of rod displacement data that data acquisition equipment transmits, the relation that represents by pulling force-displacement curve shown in Figure 6, the body of rod displacement data that terminal is recorded is converted into the anchoring quality data of surrounding rock displacement and anchor pole/anchor cable, and output to display, when the pulling capacity of anchor pole/anchor cable and surrounding rock displacement surpass setting value, output alarm signal.
As a kind of optimal way, increase resistive shape anchor pole/anchorage cable anchoring quality monitoring device and also comprise field control equipment 6, configuration and function that it possesses described central processing system are arranged on engineering site with it, observe monitoring result, in order to pinpoint the problems and in time process in good time.
By being installed in the displacement measurement unit 2 on each anchor pole/anchor cable, record the body of rod 103 relatively displacement of friction sleeve pipe 102 generations in the work engineering, by data acquisition equipment 3 the displacement data collection is gathered storage, then by information carrying means 4 data are sent to central processing system 5.Central processing system is according to the character of anchor pole/anchor cable, the displacement data that transmission comes can be converted into pulling capacity and the surrounding rock displacement data of anchor pole/anchor cable, send alarm signal when monitored data abnormal (pulling capacity sharply reduces or rising, displacement of wall rock excessive) time.
The method that the body of rod and sleeve pipe relative displacement data is converted into the pulling capacity of anchor pole/anchor cable and surrounding rock displacement data is as follows: increase resistive shape anchor pole/anchor cable for any specific model, have one to one relation between the pulling force that the body of rod and sleeve pipe relative displacement and anchor pole/anchor cable are subject to, can obtain the two corresponding pulling force-displacement curve by Experimental Calibration.This can try to achieve its pulling capacity by increasing resistive shape anchor pole/anchor cable displacement by this curve, and wherein body of rod displacement data can be similar to as the surrounding rock displacement data, can assess its anchoring quality accordingly.
The utility model is measured the pulling capacity of anchor pole/anchor cable and surrounding rock displacement is monitored two class devices and is coupled in the support apparatus, can realize simultaneously timely monitor to surrounding rock displacement and anchor pole/anchorage cable anchoring quality by lower cost.According to survey data monitoring analysis anchoring quality, in time find inefficacy anchor pole/anchor cable, in case of emergency remind central processor's anchoring system and state of surrounding rock in time to take treatment measures, effectively prevent the generation of security incident, be suitable for the fields such as Hydraulic and Hydro-Power Engineering, slope project, mine engineering to the demand of country rock and anchor device monitoring, can greatly reduce monitoring cost.
The above; it only is the better specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of utility model.
Claims (2)
1. one kind increases resistive shape anchor pole/anchorage cable anchoring quality monitoring device, it is characterized in that: comprise increasing resistive shape anchor pole/anchor cable, displacement measurement unit, data acquisition equipment, information carrying means and central processing system;
The described resistive shape anchor pole/anchor cable that increases comprises: friction sleeve pipe, contractibility member, the body of rod/steel strand, pallet, nut and outer end cap; Described friction sleeve pipe is the tubular thick walled steel tube, and internal diameter passes through and diminishes gradually; Described contractibility member is the steel pipe with axial breach, is nested in the friction sleeve pipe, and its external diameter diminishes gradually from the end to end of member, and the outer wall of contractibility member keeps in touch with the inwall of friction sleeve pipe; The friction sleeve pipe extends to the anchor hole outside, is the open type structure, is threaded connection with outer end cap, and the outer end cap place reserves wire guide;
Described displacement measurement unit, be installed in advance and increase resistive shape anchor pole/anchor cable inside pipe casing, be fixed on the internal surface of sleeve pipe, and be connected with the body of rod, a kind of optimal way of displacement measurement unit is for adopting position sensor, for different measurement categorys, the displacement measurement unit can have a plurality of, consists of one and measures the group;
Described data acquisition equipment, comprise data acquisition interface, signal conversion unit, data storage cell and data output unit, data acquisition equipment links to each other with at least one displacement measurement unit, and for different measurement categorys, data acquisition equipment can have one or more;
Described information carrying means, use and data acquisition unit and central processing system between transfer of data, this device is except adopting the data call wire, another kind of preferred version is for to carry out transfer of data by wireless mode;
Described central processing system, comprise data receiver unit, data storage cell, data processing unit, data output unit, screen display unit and alarm Tip element, data processing unit is according to pulling force-displacement curve, the body of rod displacement data that terminal is recorded is converted into pulling capacity and the surrounding rock displacement data of anchor pole/anchor cable, and output to display, output alarm signal appears when unusual in the pulling capacity of anchor pole/anchor cable and surrounding rock displacement data; Described pulling force-displacement curve obtains by pull-out test.
2. the resistive shape anchor pole/anchorage cable anchoring quality monitoring device that increases according to claim 1 characterized by further comprising field control equipment, possesses configuration and the function of described central processing system, is arranged on engineering site.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458623 CN202866844U (en) | 2012-09-02 | 2012-09-02 | Resistance increasing deformed anchor rod or anchor cable anchoring quality monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458623 CN202866844U (en) | 2012-09-02 | 2012-09-02 | Resistance increasing deformed anchor rod or anchor cable anchoring quality monitoring device |
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| Publication Number | Publication Date |
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| CN202866844U true CN202866844U (en) | 2013-04-10 |
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| CN 201220458623 Withdrawn - After Issue CN202866844U (en) | 2012-09-02 | 2012-09-02 | Resistance increasing deformed anchor rod or anchor cable anchoring quality monitoring device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839693A (en) * | 2012-09-02 | 2012-12-26 | 山东科技大学 | Anchor quality monitoring device for increased resistance deformation anchor bolts/ropes and application method |
| CN103982211A (en) * | 2014-05-08 | 2014-08-13 | 河南理工大学 | High-strength large-deformation piston-type resistance-increasing anchor rod |
| CN104453963A (en) * | 2014-12-16 | 2015-03-25 | 湖南科技大学 | Anchoring predicting and prewarning anchor rod system used for coal and gas outburst danger roadway |
| CN104612733A (en) * | 2015-03-04 | 2015-05-13 | 北京中水新能工程技术有限公司 | Anchor rod monitoring device and anchor rod using device |
| CN106401629A (en) * | 2016-12-14 | 2017-02-15 | 安徽理工大学 | Yielding anchor rod capable of monitoring yielding amount in real-time |
| CN106908033A (en) * | 2017-04-11 | 2017-06-30 | 山东科技大学 | A kind of goaf top plate multi-point displacement synchronous measuring apparatus and its measuring method |
| CN112502757A (en) * | 2020-12-15 | 2021-03-16 | 山东科技大学 | Corrosion protection and on-site corrosion monitoring method and device for anchor rod support system |
| CN117629312A (en) * | 2024-01-26 | 2024-03-01 | 四川川核地质工程有限公司 | Monitoring device and monitoring method for slope collapse |
-
2012
- 2012-09-02 CN CN 201220458623 patent/CN202866844U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839693A (en) * | 2012-09-02 | 2012-12-26 | 山东科技大学 | Anchor quality monitoring device for increased resistance deformation anchor bolts/ropes and application method |
| CN102839693B (en) * | 2012-09-02 | 2015-12-30 | 山东科技大学 | Increase resistive shape anchor pole/anchorage cable anchoring quality monitoring device and application process |
| CN103982211A (en) * | 2014-05-08 | 2014-08-13 | 河南理工大学 | High-strength large-deformation piston-type resistance-increasing anchor rod |
| CN104453963A (en) * | 2014-12-16 | 2015-03-25 | 湖南科技大学 | Anchoring predicting and prewarning anchor rod system used for coal and gas outburst danger roadway |
| CN104612733A (en) * | 2015-03-04 | 2015-05-13 | 北京中水新能工程技术有限公司 | Anchor rod monitoring device and anchor rod using device |
| CN106401629A (en) * | 2016-12-14 | 2017-02-15 | 安徽理工大学 | Yielding anchor rod capable of monitoring yielding amount in real-time |
| CN106908033A (en) * | 2017-04-11 | 2017-06-30 | 山东科技大学 | A kind of goaf top plate multi-point displacement synchronous measuring apparatus and its measuring method |
| CN112502757A (en) * | 2020-12-15 | 2021-03-16 | 山东科技大学 | Corrosion protection and on-site corrosion monitoring method and device for anchor rod support system |
| CN117629312A (en) * | 2024-01-26 | 2024-03-01 | 四川川核地质工程有限公司 | Monitoring device and monitoring method for slope collapse |
| CN117629312B (en) * | 2024-01-26 | 2024-04-02 | 四川川核地质工程有限公司 | Monitoring device and monitoring method for slope collapse |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130410 Effective date of abandoning: 20151230 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |